Window-sash lock



May 26, 1925. 1,539,072

' J. E. cARBls WINDOW SASH LOCK Filed OCT.. 18. 1924 M' Muuunmuml/ lili INVENTOR BYZ M A ORNEY useful Patented May 26, 1925.

oFFIcE.:

JAMES E. Gamers, or LONG `ISLAND CITY, NEW YORK.

WINnoW-sAsH Loox.;

Application ined october 18 To all whom t -maje/ conce-rn.' f

Be it `known that I, JAMES E. Camus, a .Y citizen of the United States, residing at Long Island City, county of Queens and State of New York, have invented new and Improvements in IVindow-Sash Locks, of which the following is a full, clear, and exact specification.

My invention relates to locks and refers particularly to locks suitable for use upon windows.

My invention presents a simply constructed, economical and eflicient lock for locking windows ,from slidable movement and which is adaptable for both the upper end the lower window sashes and which can be un- 'loeked by means of a. suitable key and which will snap back into locked position when the window is moved into the locking post tion.

In the accompanying drawings, illustrating oneform of the device of my invention, similar parts are designated by similar1 numerals.

Figure l is a view of a window carrying one of my devices upon each ofthe sashes.

Figure 2 is a cross-section through the line 2--2 of Figure 3.

Figure 3 is a cross-section line 3-3 of Figure 2.

The particular form of the device of my invention shown in the accompanying drawings comprises a easing 10 positioned within a corresponding recess 11 of the side frame of a window sash 12 and fiXedly positioned therein by screws as 13.

A shaft 14 is journaled in the casing 10. Revoluble upon the shaft 14 is a hub 15, having the extended angular projection `16 to engage the key 17. The hub 15 is eX- tended into the lforked member 18, 18, thus forming a shoulder 19. The forked mem-` bers 18, 18 are connected by a bar 20. The

through the forked member is connected to the side of the casing` l0 by the spring 21.

A shaft 22 journaled in the casing 10 carries the fixedly attached pawl 23 having; a cam element 24 and a recess stop 25.

Vithin a recess of the window easement 26 is a member 27, retained in position by screws 28, 28 and of such a shape that the pawl member 23 will abut therein when `in normal position.

The operation of the `device is as follows When the device is in normal, or locked,

, 1924. seriai rief/44,333.`

position the pawl member 23l is positioned within the framefmember 27 and is main`. tained in that position by `the downward movement of the shoulder 19 upon the pawl` 23, caused by the spring 21, 21, the connect ing bar 20 resting within the recess stop as 2l. The window sash 12 is `thus locked from upward movement.

When it is desired to raise the sash 12, the key 17 is fitted to the extended member 16 and the revolution of the forkedmember 18, 18 causes the connecting bar 2() to ride along the edgev of the locking member, or pawl, 23 raising it and releasing it from the frame member 27, thus .allowing the upward movement of the sash.

The same device may be employed for purposes of `locking an upward sash from downward movement, as indicated in Figure 1, in which case the device is placed in reverse position from that described.

It will thus be seen that my device presents an inexpensive and. efficient means for locking a window sash from movement within a window frame.

I do not limit myself to the particular size, shape, or arrangement of parts as shown and described, as these are given simply as a means for clearly defining my invention.

1. In alock in combination with a win dow sash and window frame, a recessed member within the window frame; a casing recessed within la window sash; a revoluble locking bar within the casing, having a cam edge. and placca-ble within the frame memberl locking the sash from movement; a revoluble forked `member within the casing, the

forks of which straddle the locking bar andl are connected by means o f a bar below the locking bar; and a member extending out* side of the casing, the revoluble movement of which will remove the locking bar from the frame recess and means for returning the locking bar into locking position.

2. In a lock in combination with a window sash and i window frame. a recessed member within the window frame; a cas* ing recessed within a windowsash; a revoluble locking bar within the casing, having a cam edge and placeable within the frame member locking the sash from movement; a revoluble forked memberl within the casing, the forks of which straddle the locking bar and are connected bymeans of a Vbar below `the locking bar; and a member extending outside of the casing, the revoluble movement of which Will raise the forked meniber, carrying therewith the locking bar from Iframe recess engagement; and means for returning the locking bar into the frame recess When the Window sash is in lockable position. Y

3. In a lock in combination with a Window sash and Window frame` a recessed member' Within the Window frame; a casing recessed Within a Window sash; a revolub-le locking bar Within the casing havinor a cam edge.y L

h? r1 C l stop recess and placeable Within the frame recess locking' the sash from movement; a

revoluble forked member Within the casing,

the forks of which straddle the looking bar and are connected by means oi' a bar below the locking bar, the shoulder of the forked member abutting upon the locking member `When the latter is in locked position; a key mea-ns having a locking tension upon the forked member.

Signed at New York citv` in the county of 4 New York and State of New York, this 15th day of October, 1924.

JAMES E. GARBIS. 

